diff --git a/CITATION.cff b/CITATION.cff
index ec558b00..18c3b21b 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -19,12 +19,15 @@ identifiers:
   - description: This is the collection of archived snapshots of all versions of PedPy
     type: doi
     value: "10.5281/zenodo.7194992"
-  - description: This is the archived snapshot of version 1.3.0 of PedPy
+  - description: This is the archived snapshot of version 1.5.0 of PedPy
     type: doi
-    value: "10.5281/zenodo.17081120"
+    value: "10.5281/zenodo.20511313"
   - description: This is the archived snapshot of version 1.4.0 of PedPy
     type: doi
     value: "10.5281/zenodo.14789994"
+  - description: This is the archived snapshot of version 1.3.0 of PedPy
+    type: doi
+    value: "10.5281/zenodo.17081120"
   - description: This is the archived snapshot of version 1.2.0 of PedPy
     type: doi
     value: "10.5281/zenodo.13850961"
@@ -47,4 +50,4 @@ identifiers:
     type: doi
     value: "10.5281/zenodo.8405437"
 
-version: 1.4.0-dev
+version: 1.5.0-dev
diff --git a/SECURITY.md b/SECURITY.md
index 6e8c310d..a82616b4 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -6,7 +6,8 @@ This project supports the following versions with security updates:
 
 | Version | Supported          |
 |---------|--------------------|
-| 1.4.0   | :white_check_mark: |
+| 1.5.0   | :white_check_mark: |
+| 1.4.0   | :x: |
 | 1.3.0   | :x:                |
 | 1.2.0   | :x:                |
 | 1.1.x   | :x:                |
diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index a63a2192..b6cd8843 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -2,6 +2,16 @@
 Changelog
 *********
 
+Version 1.6.0 (YYYY-MM-DD)
+==========================
+
+**New features:**
+
+**What's changed:**
+
+**Fixes:**
+
+
 Version 1.5.0 (2026-06-02)
 ==========================